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(ModeL) L. J. TRUSSELL.

DEVICE FOR FASTENING PRESSEB FEET FOR SEWING MACHINES TO THEIR BARS.

NO. 311,7!95. Patented Feb. 3. 1885.

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UNITED .SrATEs ATENI tree.

LORENZO J. TRUSSELL, OF LEAVENWORTH, KANSAS, ASSIGNOR OF ONE- HALF TOCORNELIUS S. HARTOUGH, OF SAME PLACE.

DEVICE FOR FASTENING PRESSER-FEET FOR SEWING-MACHINES TO THEIR BARS.

SPECIFICATION forming part of Letters Patent No. 311,795, dated February3, 1885.

Application filed December 11, 1883. (Model) T0 (LZZ whom it mayconcern.-

Be it known that I, LORENZO J. TRUSSELL, a citizen of the United States,residing at Leavenworth, in the county of Leavenworth and State ofKansas, have invented certain new and useful Improvements in Devices forFastening PYSSET-FG6D for Sewing-Machines to their Bars,of which thefollowing is a specification.

The object of this invention is to provide a ready means of attachingand detach ing presser-feet, hemniers, ruftlers, tuckers, corders,button-hole attachments, and other devices to and from their bars, whichshall at the same time be capable of holding them rigidly in position.For this purpose I provide thelowor end of the bar with a longitudinalslot of suitable form to receive the shank of the press er-foot, andwith a spring-catch adapted to hold the shank firmly in position.

In order that my invention may be fully understood, I will proceed todescribe it with reference to the accompanying drawings, in which-Figure I represents a presserbar and foot fastened together according tomy invention. Fig. II is a vertical section of the same. Fig. III is adetached view of a modified form of the invention.

The bar 1 has at its lower end alongitudinal slot, 2, the lower end ormargin of which has a central angular stud or elevation, 3, and theupper end of which is ehamfered so as to-forin a wider opening at theside where the shank enters than at the other. The bar is bored outimn'iediately above the slot, and within this bore is set a spring-bolt,4, the end of which is beveled on that side toward the larger opening ofthe slot in the bar to permit the raising of the bolt by the insertionof the shank of the presser-foot. A button, 7, attached to a pin on thebolt 4.,enables the raising of the said bolt by hand, and a slide, 8, inwhich said button travels,limits the motion of the bolt. \Vhen in itslower'position the end 5 of the bolt occupies a notch, 9, in the upperend of the shank 5 of the presser-foot 6, so' as to prevent the samefrom falling out. The lower end of the-shank is provided with an angularrecess of corresponding shape to the ridge in the bottom of the slot 2.It will be seen that when the shank of the presser-foot is inserted inthe slot 2 it will be held in position notwithstanding any upwardpressure on the foot, and that the spring-bolt merely 5 serves toprevent the foot from falling out on the raising of the bar. Theslotniay be either fromfront to back, as in Figs. land 2, or from sideto side in the bar, as in Fig. 3.

Iam aware that it is not new to secure a presser-foot or otherattachment to a sewingmachine without the aid of a binding-screw, and donot claim such, broadly, as my inventiou.

Having thus described my invention, the

1 with a transverse lug and a spring-bolt pro jecting into the said slotfrom opposite sides,

respectively, in combination with a presserfoot having a shank formedwith edges complementary to those of the slot and lug there in andengaged by the bolt, as set forth.

2. The )rcsscr-foot bar havin a vertical slot near its lower extremity,one end of said slot having a lug projecting thereinto and the oppositeend having achamfered abutting surface or seat, in combination with thepresserfoot having a shank formed with a notch and with edgescomplementary to those of the slot, and a spring-bolt adapted to entersaid notch, substantially in the manner and for the purpose set forth.

LORENZO J. TRUSSELL.

Witnesses: JOHN BEE'KER,

Tr-roiriis PLOWMAN.

